rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
|
pubmed:dateCreated |
1995-2-2
|
pubmed:abstractText |
It has been recently reported that the 72 kDa proteolytic enzyme gelatinase A/type IV collagenase/matrix metalloproteinase 2 (MMP2) hydrolyzed the Lys 16-Leu 17 peptide bond of a synthetic decapeptide (YEVHHQKLVFF) representing the soluble A beta sequence of amino acid residues 10-20. Our aim was to test if this enzyme could also degrade the insoluble 40-42 residues long A beta peptides purified from Alzheimer Disease brain. Our results indicate that MMP2 hydrolyzes A beta 1-40 and A beta 1-42 peptides at Lys 16-Leu 17, at Leu 34-Met 35, and Met 35-Val 36 peptide bonds. These results suggest that MMP2 has the ability of degrading A beta of AD in vitro. If this hydrolysis also occurs in the brain's extracellular matrix, the enzymatic action of gelatinase a could prevent the generation of amyloidogenic A beta 1-40(42).
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pubmed:grant |
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0006-291X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
30
|
pubmed:volume |
205
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1755-61
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:7811262-Alzheimer Disease,
pubmed-meshheading:7811262-Amino Acid Sequence,
pubmed-meshheading:7811262-Amyloid beta-Peptides,
pubmed-meshheading:7811262-Brain,
pubmed-meshheading:7811262-Extracellular Matrix,
pubmed-meshheading:7811262-Gelatinases,
pubmed-meshheading:7811262-Humans,
pubmed-meshheading:7811262-Hydrolysis,
pubmed-meshheading:7811262-Matrix Metalloproteinase 2,
pubmed-meshheading:7811262-Metalloendopeptidases,
pubmed-meshheading:7811262-Molecular Sequence Data,
pubmed-meshheading:7811262-Peptide Fragments,
pubmed-meshheading:7811262-Recombinant Proteins,
pubmed-meshheading:7811262-Solubility
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pubmed:year |
1994
|
pubmed:articleTitle |
Proteolysis of A beta peptide from Alzheimer disease brain by gelatinase A.
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pubmed:affiliation |
Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI 48201.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.
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